biology

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Across
  1. 4. an external respiratory opening
  2. 7. large class of inferior female divinities
  3. 8. an eye
  4. 13. the fused head and thorax of spiders
  5. 14. formed from three roots that mean three lobed forms
  6. 15. diverse arthropod taxon which includes such animals as decapods, seed shrimp
  7. 16. Beetles and millipedes and flies and centipedes
  8. 17. a sent you put off to attract
  9. 18. a limb or body part
Down
  1. 1. the most abundant amino polysaccharide polymer occurring in nature
  2. 2. turning from immature to mature
  3. 3. millipede
  4. 5. insect, spider, or crustacean
  5. 6. a protective shell
  6. 9. sea spiders, and horseshoe crabs.
  7. 10. head and thorax are disatached
  8. 11. shedding of skin or fethers
  9. 12. having the male and female reproductive organs
  10. 17. baby bug